Defensive publication



DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 O.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Otfice makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED APRIL 28, 1970 T873,014 1-ARYLAMINO-4-ARYLSULFONAMIDO- ANTHRAQUINONE COMPOUNDS Max A. Weaver and Clarence A. Coates, In, both of R0. Box 511, Kingsport, Tenn. 37662 Filed Jan. 23, 1969, Ser. No. 793,606 Int. Cl. C0911 1/34, 1/54 US. Cl. 260-373 No Drawing. 8 Pages Specification A water-insoluble compound having the formula wherein R and R are the same or different and each is phenyl or phenyl substituted with lower alkyl, lower alkoxy, lower hydroxyalkoxy, or halogen;

R is hydrogen, lower alkyl, lower alkoxy, lower hydroxyalkoxy, lower alkoxy-lower-alkoxy, lower hydroxyalkoxy-lower-alkoxy; halogen; cyano; phenoxy, or phenoxy substituted with lower alkyl, lower alkoxy, lower hydroxyalkoxy, or halogen. The compounds are useful as dyes for hydrophobic textile materials such as cellulose acetate, polyamide, modacrylic and polyester fibers, yarns and fabrics. 

